GPT-5.5
ProprietaryOpenAI
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Context: 1.05M tokensReleased: Apr 24, 20260 up · 0 down
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